Theoretical Consideration of the Long-length Primary Loop used in SCMaglev's DWPT System

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The primary loop of the SCMaglev's DWPT system has several distinctive features compared to other DWPT systems. These include its length, order of several kilometers, its installation position close to the concrete roadbed and its working frequency near 10kHz. These were almost no findings and experiences regarding electric constants required for designing the electric resonance, theoretical considerations have been conducted to determine the constants, inductance and stray capacitance. The value obtained can be calculated using simplified methods and are close to the results obtained from the field test.